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Light

Physics

Nanoscale device emits light as bright as an object 10,000 times its size

Amplifying light a few hundred times with magnifying lenses is easy. Amplifying light by altering the resonant properties of light itself is a much more difficult proposition. However, if recent research by engineers at the University of Wisconsin-Madison engineers is anything to go by, the effort is well worth it: They claim to have constructed a nanoscale device that can emit light as powerfully as an object more than 10,000 times its size.Read More

Health & Wellbeing

Nox Smart Sleep System offers suggestions to improve slumber

Earlier this year, China's Sleepace successfully crowdfunded and shipped a 2 mm thick smart strap that lays on the bed and monitors a user's sleep time, heart rate and breathing, body movement and sleep cycles. The RestOn then sends the collected data to a companion app running on a Bluetooth-paired smartphone for analysis. Now the company has added a smart light to the system called the Nox, which works in conjunction with the RestOn to help monitor, track and improve sleep quality.Read More

Science

Inkless printing manipulates light at the nanoscale to produce colors

Using nanometer-size metamaterials, researchers at Missouri University of Science and Technology have developed a technique to print images that uses the manipulation of light, rather than the application of ink, to produce colors. This "no-ink" printing method has been demonstrated by producing a Missouri S&T athletic logo just 50 micrometers wide.

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Materials

Researchers use graphene to control light waves

A team of MIT scientists has combined graphene with a second, similarly structured material, producing a hybrid that can wield significant control over light waves. The findings could have an impact in a number of fields, including efforts to utilize light in computing chips.Read More

Space

Massive stars lit up the early universe

After the Big Bang, it took several hundred million years for all the hydrogen and helium and some other gases floating around to start to coalesce into the first stars to light up the universe. New research shows these ancient suns would have clustered together to form extraordinarily bright groupings of stars. Read More

Levitating lightbulb takes Flyte

Need something to place alongside your levitating Bluetooth speaker? Or just sick of utilitarian lighting solutions anchored down by ghastly wires and fittings? It looks like progress in magnetic levitation, wireless charging and a particular product designer's brain have come together to save the day. Flyte is a globe that hovers freely above its base, offering a unique way to light up a room.Read More

Electronics

Graphene device makes ultrafast light to energy conversion possible

Converting light to electricity is one of the pillars of modern electronics, with the process essential for the operation of everything from solar cells and TV remote control receivers through to laser communications and astronomical telescopes. These devices rely on the swift and effective operation of this technology, especially in scientific equipment, to ensure the most efficient conversion rates possible. In this vein, researchers from the Institute of Photonic Sciences (Institut de Ciències Fotòniques/ICFO) in Barcelona have demonstrated a graphene-based photodetector they claim converts light into electricity in less than 50 quadrillionths of a second. Read More

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